I agree with Yam Sham.
I'm not saying this girl is a bold face liar, but just in normal life, this is a VERY touchy time for a woman. The first couple of years of a new baby can be REALLY tough on a woman. It's HARD to loose that weight and when you do lose it, you can't see it. You're constantly covered in gross things and smell like spoiled milk and getting a shower is like winning the lottery....getting a FULL shower anyway that doesn't have screaming in the background.
I'm starting to wonder if ANY man can get through this without a couple of scars and their wives hating them for apparently, "unknown" reasons. There ARE reasons we hate them, but not ones that make sense to THEM.
I'm not saying her husband is a decent and loving guy, but there is a BIG tendency for women in this position to....hmmmm, thinking of nice way to put this....over-state the situation.
Suddenly, not helping with the baby, showing up late for dinner, or forgetting to get the milk is a MAJOR flaw because it means they don't care, they think you're a pig and they don't want to make anything easier on you.
I remember one time, I felt like a bit "raped" because I had finally gotten the baby to bed...again...laid down, had the opprotunity for about 4 hours of sleep, finally passed out and woke up to a bit of a "surprise". I was NOT happy and felt like not only was I violated but that hubby was a worthless and heartless jerk and if I could have thrown him out the window, I would have. He didn't MEAN to be mean, in fact, I believe it when he says he was TRYING to be nice. It just didn't work.
I'm not saying this IS what is going on, but when dealing with a VERY needy woman, not just because of a bad relationship that she's not happy in, but with a new baby...the idea of an ear that's willing and ready to listen and be comforting, kind of has an effect on an already upset mind.
Other than the baby, the other thing that stood out was the parents moving across the country. Parents have a 6th sense about their children. And if things were HONESTLY that bad, they'd be forcing her to move with them not leaving her to deal with things. And they'd sense it whether or not she told them.
She may well have Post Partem too. It's ugly and can make the smallest things look like LARGE HORRIBLE events.
She OBVIOUSLY needs a friend, but if I were you, I wouldn't give up anything at the moment to help her. If she needs help, she'll flee with her parents, that is safe. And even if she does go with them, I'd take the other's advice and keep your distance.
Her husband didn't just TURN nuts. So, she might have a tendency to jump into relationships. And she sounds miserable enough to not be the type of person you'd WANT to jump into a relationship with until she regains her footing.
I know it's not what you wanted to hear, but I watch WAY too much Forensic Files!